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Roof airbag device and occupant protection device

a technology for occupant protection and airbags, which is applied in the direction of pedestrian/occupant safety arrangements, vehicular safety arrangments, vehicle components, etc., can solve the problem of not being able to suppress an occupant, and achieve the effect of preventing or effectively suppressing, and excellent

Active Publication Date: 2014-12-25
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention is about a roof airbag device and an occupant protection device that can prevent a seated occupant from moving towards the center of a vehicle in case of a front impact. This is achieved by deploying the roof airbag in front of the occupant in case of an impact to one side of the vehicle, which would otherwise cause the occupant to move towards the center. This technology prevents or effectively suppresses the occupant from hitting the instrument panel and ensures safety during a front impact.

Problems solved by technology

However, technologies disclosed in JP 2007-223525 A and JP 2009-154709 A are technologies for protecting an occupant from side impact and cannot suppress an occupant from moving diagonally forward toward a center side in a vehicle width direction of an instrument panel.

Method used

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  • Roof airbag device and occupant protection device
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  • Roof airbag device and occupant protection device

Examples

Experimental program
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Effect test

second embodiment

[0055]A CR airbag device 50 according to a second embodiment of the present invention will be described based on FIG. 4. In FIG. 4, a CR airbag 52 as an airbag that forms the CR airbag device 50 is shown in a perspective view corresponding to FIG. 1. As shown in the drawing, the CR airbag 52 is different from the first embodiment in which the front duct 34F is formed of a pair of right and left front ducts 34FD and 34FP in a point that a front duct 54F of a duct part 54 is formed of a single cylindrical duct.

[0056]The duct part 54 of the CR airbag 52 is formed into a rectangular frame-like shape in a side view, and an upper duct 54U, a rear duct 54R, and a lower duct 54L thereof are formed in the same manner as the upper duct 34U, the rear duct 34R and the lower duct 34L, which are described above. On the other hand, the front duct 54F forms a cylindrical shape that extends in the above and below in the same manner as the rear duct 54R and connects between front ends of the upper du...

third embodiment

[0060]A CR airbag device 60 according to a third embodiment of the present invention will be described based on FIG. 5. In FIG. 5, a schematic entire structure in an operation state of the CR airbag device 60 is shown in a schematic side view. As shown in this drawing, a CR airbag 62 as an airbag that forms the CR airbag device 60 is different from the first embodiment in which the duct part 34 forms a rectangular frame-like shape, in a point that it has a nearly inverse “V” character-like duct part 64.

[0061]Specifically, the duct part 64 is formed with a front duct 64F and a diagonal duct 64S as a diagonal cylindrically deployed part that is a rear deployed part. The front duct 64F is inflated and deployed as a single cylindrical duct that extends in the above and below. The diagonal duct 64S is inflated and deployed in a posture that is inclined such that a front side part is positioned above a rear side part and a front upper end is connected to an upper end of the front duct 64F...

fourth embodiment

[0067]A CR airbag device 70 according to a fourth embodiment of the present invention will be described based on FIG. 6A and FIG. 6B. In FIG. 6A, a schematic entire structure in an operation state of the CR airbag device 70 is shown in a schematic side view, and in FIG. 6B, a schematic entire structure in an operation state of the CR airbag device 70 is shown in a schematic plan view. As shown in these drawings, a CR airbag 72 as an airbag that forms the CR airbag device 70 is different from the first embodiment in a point that the duct part 74 has an intermediate duct 74C as an intermediate deployed part that is inflated and deployed between a front duct 74F and a rear duct 74R. The instrument panel 20 shown with an imaginary line in FIG. 6A shows a shape in a near center in the vehicle width direction.

[0068]A duct part 74 of the CR airbag 72 includes the front duct 74F as a front deployed part, the rear duct 74R as a rear deployed part, an upper duct 74U as an upper deployed part,...

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PUM

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Abstract

A roof airbag device includes a roof airbag housed in a part that includes a front end side in a vehicle longitudinal direction in a center part in a vehicle width direction of a roof. The roof airbag includes: a front deployed part that is deployed in front in a vehicle longitudinal direction with respect to an occupant such that a lower end side in a vehicle up-and-down direction overlaps with an instrument panel in an up-and-down direction in a rear view; a rear deployed part that is at least partially deployed between right and left seats; and a thin deployed part that is deployed in a state connected with the front deployed part and the rear deployed part and surrounded by these deployed part, and in non-inflation or in inflation at a thickness thinner than an inflation width of the inflated and deployed part in a vehicle width direction.

Description

INCORPORATION BY REFERENCE[0001]The disclosure of Japanese Patent Application No. 2013-132670 filed on Jun. 25, 2013 including the specification, drawings and abstract is incorporated herein by reference in its entirety.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates to a roof airbag device and an occupant protection device.[0004]2. Description of Related Art[0005]A device that deploys an airbag toward between right and left seats from a roof of a vehicle at the time of side impact has been known (see Japanese Patent Application Publication No. 2007-223525 (JP 2007-223525 A) and Japanese Patent Application Publication No. 2009-154709 (JP 2009-154709 A), for example).[0006]However, technologies disclosed in JP 2007-223525 A and JP 2009-154709 A are technologies for protecting an occupant from side impact and cannot suppress an occupant from moving diagonally forward toward a center side in a vehicle width direction of an instrument panel....

Claims

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Application Information

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IPC IPC(8): B60R21/232
CPCB60R2021/0004B60R21/232B60R21/231B60R21/214B60R2021/23161
Inventor FUKAWATASE, OSAMU
Owner TOYOTA JIDOSHA KK